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H, F. WAiTE. X-RAY TUBE HOLDER AND SHIELD. APPLICATION FILED SEPT.20.I9II- Patented June 24, 1919.

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K-MY-TUBE HOLDER AND SHIELD.

Specification of Ietters Patent.

Patented June 24, 1919.

- Anpl ication filed September 20, 1917. Serial No. 192,251.

' and useful Improvement in X-Ray-Tube Holders and Shields, of which thefollowing is a specification.

The object of my invention=is to provide a device of this class, whichmay be usedrto hold a tube and protect both the patient and the personoperating the apparatus and at the same time to provide a good, durableand adjustable apparatus which will be reliable in its operation, anddischarge properly all the functions for which it is designed. This andother objects are accomplished by my invention one embodiment of whichis here inafter more particularly set forth.

For a more particular description of my invention, reference is to behad to the accompanyingdrawing, forming a part hereof, in which,

Figure l is a plan view of my'shield and holder,

Fig. 2 is an enlarged end elevation of the shield and a portion of theholder.

Fig. 3 is a partial sectional view taken.

substantially on the -line 33 of Fig. 2 looking in the direction of thearrows.

'Throughout the various views of the drawing'similar referencecharacters designate similar parts.

My invention contains an improved holder.

1 which is provided with a shield 2 which is mounted in a suitable clamp3 which in turn' is secured by a pivotal connection 4 with a pivoted arm5 which is connected by a pivotal connection 6 to a second pivotal arm 7which in turn is also mounted to slide radi-= cured, the hub 8 may beleft in this positionor if the hub 8 is considerably removed from itscorrect position, the set screw 12 may be released and the hub 8 thenturned without regard to the adjusting screw 11 until approximately inits correct position, and then this screw 12 may be tightened and the adjusting screw 11 used for delicate adjusting.

More particularly, the shield 2 is prefer- 5 ably made substantially inthe shape shown,

that is, with two parts, 13 and 14, which are connectedwith a groundglass joint 15 except at the hole 16 where an opening is had for a neckof an X-ray tube. The part 14 has a laterally extending tubularprojection I 17 which allows direct access to the X ray tube, andthrough which X-rays are projected when the apparatus is in use, and thepart 13 has a corresponding tubular projection 18 which is preferablyplaced in axial alinement with the tubular projection 17 and runs in theopposite direction and is made smaller in diameter but longer in lengthso as to receive and hold a neck of an X-ray tube.

The clamp 3 is provided with a cushion collar 19 which is adapted toembrace the neck 17 and hold the same where it joins the bulb of thepart 14 and the cushion ring 19 is provided with laterally extendingspring extensions 20 which run nearly parallel with the globe 14 and endin laterallyextending perforated cars 21 which receive cap screws 22 andare pressed by their nuts 23.

parts 13 and 14 into intimate contact in a,

manner which holds an X-ray tube securely at all times and in anydesired position. The structure by which the plate,26: is secured willnow be set forth. A laterally extending bulb 27 is fixed to the plate 26in any suitable manner and passing therethrough is a screw 28 which hasa spring 29 pressing against washers 30 so as to keep the projection 27from turning freely on thescrew 28, so that the projection 2'7 and thepart carried thereby may be adjusted on the screw 28 in any desiredposition; The screw 28 is fixed in place in the pivoted arm 5 by meansof a lock nut 31 which is placed therein in any convenient location sothat under no circumstances will the screw 28 turn when the lock nut 31is fixed to the screw. The other end of the arm 5 is pivoted at 6 in aclevis or in any other suitable manner and the arm 7 ismounted to slideradially in the hub 8 and as it is circular in cross section, it can notonly slide therein, but may also turn therein when the set screw 9 isreleased. The adjusting screw 11 and its connections may be made in anysuitable way as by having a nut 32 on the in a dentists charr,theapparatus is placed and adjusted until the X-rays may beprojectedexactly at the desired parts, and then the exposure is had in theconventional way. Meanwhile the operator is entirely protected whileoperating the apparatus, and

the patient is protected everywhere except where the X-rays areprojected to obtain the desired results.

' While I have shown and described one embodiment of my invention, it isobvious that it is not restricted thereto but is broad enough to comewithin the scope of the annexed claims.

Having thus described my invention, What I claim is:

1. In a device of the class described, a two part protector adapted tohold an X-ray tube and provided with two necks, a clamp for holding thetwo arts in fixed relation While containing a tube so that X-rays may beprojected through one of the necks and means for permitting the clamp tobe held and adjusted in any desired. position while so holding the tube.

2. In a device of the class described, an X-ray tube shield in two partsconnected by a joint having a recess in each part which register to forma neck hole and a neck extending from each part and a clamp for] holdinthe said parts in'fixed relation so that -ra s may be projected throughone of the nee s.

HARRY F.

